Home / 12,659.42-18,989.20-8,304.46

Finding the Fourth Proportional to 12,659.42, 18,989.20 and 8,304.46

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Solution

The fourth proportional to 12,659.42, 18,989.20 and 8,304.46 is: 12,456.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,659.42 : 18,989.20 = 8,304.46 : x
  2. Step 2: Convert to fraction form
    12,659.42/18,989.20 = 8,304.46/x
  3. Step 3: Cross multiply
    12,659.42x = 18,989.20 × 8,304.46
  4. Step 4: Simplify right side
    12,659.42x = 157,695,051.83
  5. Step 5: Solve for x
    x = 157,695,051.83/12,659.42
  6. Step 6: Final answer
    x = 12,456.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.